Sforno on Genesis 31:36/ספורנו על בראשית ל״א:ל״ו

1ויחר ליעקב וירב בלבן, after Lavan did not find anything, Yaakov thought that his teraphim had never been stolen at all, but that Lavan had used the accusation as a pretext to search Yaakov’s belongings and to make him appear as a suspected thief.

2?מה פשעי מה חטאתי, What wrong have I ever committed that entitles you to treat me now as suspect of stealing?